Siemens SIMATIC S7-300 Series Reference Manual page 84

CPUs
Interfaces
1. Interface
Functionality
S
MPI Yes
S
DP Master No
S
DP Slave No
S
Galvanically isolated No
MPI No
S
Services
– PD/OP Yes
communication
– Global data Yes
communication
– S7 basic Yes
communication
– S7 communication Yes (server)
S
Transmission rates 19.2; 187.5 Kbps
2. Interface
Functionality
S
DP Master Yes
S
DP Slave Yes
– Status/Modify; Yes, can be activated
Program; Routing
S
Direct data exchange Yes
S
Point-to-point No
connection
S
Default setting None
S
Galvanically isolated Yes
DP Master
S
Services
– Equidistance Yes
– SYNC/FREEZE Yes
– Activation/deactivat Yes
ion of DP slaves
S
Transmission rates Up to 12 Mbps
S
Number of DP slaves max. 125
S
Address area max. 2 KB I/2 KB O
S
User data per DP slave max. 244 bytes I and
244 bytes O
1-68
DP Slave
S
Services
– Status/Modify;
Program; Routing
S
Device master file
S
Transmission rate
S
Transfer memory
– Address areas
Dimensions
Assembly dimension
B H T (mm)
Weight
Programming
Programming language
Stored instructions
Nesting levels
System functions (SFCs)
System function blocks
(SFBs)
User program security
Voltages, Currents
Power supply
S
Permissible range
Current consumption (idle)
Inrush current
2
l t
External fusing for supply
lines (recommendation)
PD supply at MPI (15 to
30V DC)
Power losses
Battery
S
Backup margin at 25_
C and continuous CPU
buffering
S
Battery shelf life at
25_C
Accumulator
S
Clock back-up period
– at 0 to 25_C
– at 40_ C
at 60 _ C
–
S
Battery charging time
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
Yes, can be activated
Siem806f.gsg
Up to 12 Mbps
244 bytes I/244 bytes O
max. 32 with max. 32 bytes
each
80 125 130
Approx. 0.53 kg
STEP 7
See Instruction List
8
See Instruction List
See Instruction List
Password protection
24V DC
20.4 to 28.8 V
typical 0.9A
typical 8A
2
0.4 A s
Circuit breaker; 2 A,
Type B or C
max. 200 mA
typical 10 W
Yes
min. 1 year
approx. 5 years
Yes
Approx. 4 weeks
Approx. 3 weeks
Approx. 1 week
Approx. 1 hour
A5E00111190-01